Examples of FacetsCollector

org.apache.lucene.facet.FacetsCollector
Collects hits for subsequent faceting. Once you've run a search and collect hits into this, instantiate one of the {@link Facets} subclasses to do the facetcounting. Use the {@code search} utility methods toperform an "ordinary" search but also collect into a {@link Collector}.
org.apache.lucene.facet.search.FacetsCollector
A {@link Collector} which executes faceted search and computes the weight ofrequested facets. To get the facet results you should call {@link #getFacetResults()}. {@link #create(FacetSearchParams,IndexReader,TaxonomyReader)} returns themost optimized {@link FacetsCollector} for the given parameters. @lucene.experimental

Examples of org.apache.lucene.facet.search.FacetsCollector

    ArrayList<FacetRequest> requests = new ArrayList<FacetRequest>(expectedCounts.size());
    for (String dim : expectedCounts.keySet()) {
      requests.add(new CountFacetRequest(new CategoryPath(dim), 5));
    }
    FacetSearchParams fsp = new FacetSearchParams(fip, requests);
    FacetsCollector fc = FacetsCollector.create(fsp, indexReader, taxoReader);
    MatchAllDocsQuery base = new MatchAllDocsQuery();
    searcher.search(base, fc);
    List<FacetResult> facetResults = fc.getFacetResults();
    assertEquals(requests.size(), facetResults.size());
    for (FacetResult res : facetResults) {
      FacetResultNode node = res.getFacetResultNode();
      String dim = node.label.components[0];
      assertEquals("wrong count for " + dim, expectedCounts.get(dim).intValue(), (int) node.value);

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Examples of org.apache.lucene.facet.search.FacetsCollector

      CategoryPath drillDownCP = new CategoryPath(dim);
      FacetSearchParams fsp = new FacetSearchParams(fip, new CountFacetRequest(drillDownCP, 10));
      DrillDownQuery drillDown = new DrillDownQuery(fip, new MatchAllDocsQuery());
      drillDown.add(drillDownCP);
      TotalHitCountCollector total = new TotalHitCountCollector();
      FacetsCollector fc = FacetsCollector.create(fsp, indexReader, taxoReader);
      searcher.search(drillDown, MultiCollector.wrap(fc, total));
      assertTrue("no results for drill-down query " + drillDown, total.getTotalHits() > 0);
      List<FacetResult> facetResults = fc.getFacetResults();
      assertEquals(1, facetResults.size());
      FacetResultNode rootNode = facetResults.get(0).getFacetResultNode();
      assertEquals("wrong count for " + dim, expectedCounts.get(dim).intValue(), (int) rootNode.value);
    }
  }

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Examples of org.apache.lucene.facet.search.FacetsCollector

  // than once does not alter the results
  public void testTwoSameRequests() throws Exception {
    final CountFacetRequest facetRequest = new CountFacetRequest(new CategoryPath("root"), 10);
    FacetSearchParams fsp = new FacetSearchParams(fip, facetRequest);
    
    FacetsCollector fc = FacetsCollector.create(fsp, indexReader, taxoReader);
    searcher.search(new MatchAllDocsQuery(), fc);
    
    final String expected = fc.getFacetResults().get(0).toString();


    // now add the same facet request with duplicates (same instance and same one)
    fsp = new FacetSearchParams(fip, facetRequest, facetRequest, new CountFacetRequest(new CategoryPath("root"), 10));


    // make sure the search params holds 3 requests now
    assertEquals(3, fsp.facetRequests.size());
    
    fc = FacetsCollector.create(fsp, indexReader, taxoReader);
    searcher.search(new MatchAllDocsQuery(), fc);
    List<FacetResult> actual = fc.getFacetResults();


    // all 3 results should have the same toString()
    assertEquals("same FacetRequest but different result?", expected, actual.get(0).toString());
    assertEquals("same FacetRequest but different result?", expected, actual.get(1).toString());
    assertEquals("same FacetRequest but different result?", expected, actual.get(2).toString());

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Examples of org.apache.lucene.facet.search.FacetsCollector

    RangeFacetRequest<LongRange> rangeFacetRequest = new RangeFacetRequest<LongRange>("timestamp",
                                     new LongRange("Past hour", nowSec-3600, true, nowSec, true),
                                     new LongRange("Past six hours", nowSec-6*3600, true, nowSec, true),
                                     new LongRange("Past day", nowSec-24*3600, true, nowSec, true));
    // Aggregatses the facet counts
    FacetsCollector fc = FacetsCollector.create(new RangeAccumulator(rangeFacetRequest));


    // MatchAllDocsQuery is for "browsing" (counts facets
    // for all non-deleted docs in the index); normally
    // you'd use a "normal" query, and use MultiCollector to
    // wrap collecting the "normal" hits and also facets:
    searcher.search(new MatchAllDocsQuery(), fc);


    // Retrieve results
    return fc.getFacetResults();
  }

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Examples of org.apache.lucene.facet.search.FacetsCollector


    FacetSearchParams fsp = new FacetSearchParams(
        new SumValueSourceFacetRequest(new CategoryPath("A"), 10, expr.getValueSource(bindings), true));


    // Aggregates the facet values
    FacetsCollector fc = FacetsCollector.create(fsp, searcher.getIndexReader(), taxoReader);


    // MatchAllDocsQuery is for "browsing" (counts facets
    // for all non-deleted docs in the index); normally
    // you'd use a "normal" query, and use MultiCollector to
    // wrap collecting the "normal" hits and also facets:
    searcher.search(new MatchAllDocsQuery(), fc);


    // Retrieve results
    List<FacetResult> facetResults = fc.getFacetResults();
    
    indexReader.close();
    taxoReader.close();
    
    return facetResults;

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Examples of org.apache.lucene.facet.search.FacetsCollector

    
    CategoryPath tags = new CategoryPath("tags");
    CategoryPath genre = new CategoryPath("genre");
    FacetSearchParams fsp = new FacetSearchParams(new SumIntAssociationFacetRequest(tags, 10), 
        new SumFloatAssociationFacetRequest(genre, 10));
    FacetsCollector fc = FacetsCollector.create(fsp, indexReader, taxoReader);
    
    // MatchAllDocsQuery is for "browsing" (counts facets
    // for all non-deleted docs in the index); normally
    // you'd use a "normal" query, and use MultiCollector to
    // wrap collecting the "normal" hits and also facets:
    searcher.search(new MatchAllDocsQuery(), fc);
    
    // Retrieve results
    List<FacetResult> facetResults = fc.getFacetResults();
    
    indexReader.close();
    taxoReader.close();
    
    return facetResults;

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Examples of org.apache.lucene.facet.search.FacetsCollector

    FacetSearchParams fsp = new FacetSearchParams(
        new CountFacetRequest(new CategoryPath("Publish Date"), 10), 
        new CountFacetRequest(new CategoryPath("Author"), 10));


    // Aggregates the facet counts
    FacetsCollector fc = FacetsCollector.create(fsp, searcher.getIndexReader(), taxoReader);


    // MatchAllDocsQuery is for "browsing" (counts facets
    // for all non-deleted docs in the index); normally
    // you'd use a "normal" query, and use MultiCollector to
    // wrap collecting the "normal" hits and also facets:
    searcher.search(new MatchAllDocsQuery(), fc);


    // Retrieve results
    List<FacetResult> facetResults = fc.getFacetResults();
    
    indexReader.close();
    taxoReader.close();
    
    return facetResults;

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Examples of org.apache.lucene.facet.search.FacetsCollector


    // Passing no baseQuery means we drill down on all
    // documents ("browse only"):
    DrillDownQuery q = new DrillDownQuery(fsp.indexingParams);
    q.add(new CategoryPath("Publish Date/2010", '/'));
    FacetsCollector fc = FacetsCollector.create(fsp, searcher.getIndexReader(), taxoReader);
    searcher.search(q, fc);


    // Retrieve results
    List<FacetResult> facetResults = fc.getFacetResults();
    
    indexReader.close();
    taxoReader.close();
    
    return facetResults;

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Examples of org.apache.lucene.facet.search.FacetsCollector

    FacetSearchParams fsp = new FacetSearchParams(indexingParams,
        new CountFacetRequest(new CategoryPath("Publish Date"), 10), 
        new CountFacetRequest(new CategoryPath("Author"), 10));


    // Aggregatses the facet counts
    FacetsCollector fc = FacetsCollector.create(fsp, searcher.getIndexReader(), taxoReader);


    // MatchAllDocsQuery is for "browsing" (counts facets
    // for all non-deleted docs in the index); normally
    // you'd use a "normal" query, and use MultiCollector to
    // wrap collecting the "normal" hits and also facets:
    searcher.search(new MatchAllDocsQuery(), fc);


    // Retrieve results
    List<FacetResult> facetResults = fc.getFacetResults();
    
    indexReader.close();
    taxoReader.close();
    
    return facetResults;

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Examples of org.apache.lucene.facet.search.FacetsCollector

    FacetSearchParams fsp = new FacetSearchParams(
        new CountFacetRequest(new CategoryPath("Publish Year"), 10), 
        new CountFacetRequest(new CategoryPath("Author"), 10));


    // Aggregatses the facet counts
    FacetsCollector fc = FacetsCollector.create(new SortedSetDocValuesAccumulator(state, fsp));


    // MatchAllDocsQuery is for "browsing" (counts facets
    // for all non-deleted docs in the index); normally
    // you'd use a "normal" query, and use MultiCollector to
    // wrap collecting the "normal" hits and also facets:
    searcher.search(new MatchAllDocsQuery(), fc);


    // Retrieve results
    List<FacetResult> facetResults = fc.getFacetResults();
    
    indexReader.close();
    
    return facetResults;
  }

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